Detachable traction-strap.



' Patented Aug. 20,1901. H. P. MAXIM & F. BARDWELL. DETACHABLE TRACTION STRAP.

p p I j UNITED STATES FFICE.

I-IIRAM PERCY MAXIM AND ARTHURiE. BARDWELL, OE HARTFORD, CON- NECTICUT, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE COLUMBIA AND ELECTRIC VEHICLE COMPANY, OF JERSEY CITY, NEW JERSEY.

DETACHABLE TRACTION-STRAP.

I I I ZZo all whom it may concern.

Be it known that we, H'IRAM PERCY MAXIM and ARTHUR F. BARDWELL, citizens of the I I United States,and residents of Hartford,in the I I3 county of Hartford and State of Connecticut, I I have invented certain new and useful Im- I provementsin Detachable Traction-Straps, of I p j which the following is afull, clear, and exact I p 1 description, whereby any one skilled in the '10 art can make and usethe same.

Our invention relates to the general class of traction devices; and the object of our inp vention is to produce a device of this class I I I I 3 that is especially applicable to vehicles havi 5 ing rubber tires, that shall be simple, strong,

I and durable, one that shall be thoroughly ef- I fective for purposes desired, and one that may be easily secured to or removed from a wheel. I I To this end our invention consists in the I device as a whole and in the details of con- I struction of parts, as hereinafter described, [I and more particularly set out in the claims. I Referring to the drawings, Figure 1 is a I gview in side elevation of a wheel, showing I 2 5 our improved device in place thereon. Fig. 2 is a perspective view of a portion of the device, showing its construction. Fig. 3 is a de- 1 Itail view in cross-section through the rim of I a wheel, showing the device in place thereon. I Our invention is designed more especially I I I for use in connection with a rubber-tired I I wheel, whether of the pneumatic or solid type, and in the accompanying drawings the letter n denotes the wheel-rim, b the spokes, and c I I the tire, secured in a circumferential groove You the rim.

I The device is so constructed as to be read- I ilyattached to the wheel or removed there- I 1 from, and consists of lengthwise members d,

no preferably two in number, located at or near I I each end of cross members e. These cross I members are secured to the lengthwise mem- II Ibers at suitable distances apart, and some of I I I these cross members f, as illustrated herein,

I may be provided with means of attachment f, The cross members, if desired, may be secured to the lengthwise members in such position that the latter shall lie on diametric- SPECIFIGATION forming part of Letters Patent No. 681,173, dated August 20, 1901.

Application filed December 29, 1897. Serial No. 664,176. (No model.)

ally opposite sides of the tire c, and, as shown herein, secured at their ends to the length- J wise members. I

When the members f are provided with fastening means, these are preferably located at the ends of the members, the form herein shown being bucklesf, engaging a fasteningstrap. These cross members in the preferred form of the invention are secured to the lengthwise members in such manner that the latter shall extend in direction practically parallel with each other. When this means of attachment is employed, the ends of the members provided with fastening means are made of a length sufficient to extend around the tire and rim to a point that will enable them to meet and be secured together, the fastening means f being secured to some of these ends.

Any means for securing the ends of the lengthwise members together may be employed, the'form herein shown consisting of loops at, secured to one end of. a lengthwise member, and buckles 01 at the opposite end,

a fastening-strap 71. passing through the loop d and engaging the buckle d securing the parts together. I

The cross members maybe, as herein shown, provided with spurs g, secured thereto in any desired manner and in numbers sufficient to afford the required bite or grip of the wheel upon the surface over which it is being moved, although such parts are not necessary or even essential to the invention.

In the device illustrated and described herein the cross. members and lengthwise members are composed of straps of tanned leather; but these parts may be composed of any pliable non-metallic material that willaccomplish the desired result, it being understood that those parts of the device designed to come in contact with the surface over which the vehicle is being moved shall be composed of tough pliable material as distinguished from a metallic material.

We do not desire to limit ourselves to the precise construction and arragement shown and described herein, as any traction device vice may be moved.

the tread of which involves the .use of tough pliablematerial with means forsecuring the device to the wheel of a vehicle will come within the scope of our invention.

An objection has been found to the use of traction devices composed of metal having yielding or spring qualities from the'fact that that part of the device coming in contact with a rubber tire is apt to cut the latter, and such a traction device also injures the road over which a heavy vehicle provided with the de- These disadvantages are overcome by the use of our improved device in that no injury results to the tread of the wheel nor to the surface of the road over.

which it is traveling.

We claim as our invention 1. A detachable traction device including ainumber of cross members composed of tough pliable material, with means for connecting the several members and meansfor attach ment of the same to a wheel or like part.

2. In a detachable traction device provided with means for attachment to a wheel or like part, lengthwise members and crosswise mem bers connected with each other, that part of the deviceforming the tread being composed of tough pliable material.

3. In a detachabletraction device provided with means for attachment to a wheel or like part,lengthwise members,and crosswise members extending between the lengthwise members, secured thereto, and composed oftough pliable material.

HIRAM PERCY MAXIM. ARTHUR F. BARDWELL.

. Witnesses:

FELTON PAR-KER, HENRY J -HILL. 

